Is there any function which returns the content of a variable as string?

We have to know the data type when using `sprintf` and it can convert limited types to string.

disp(var) can show the content of a variable of any type but it doesn't return anything.

Answer 1

[Walter Roberson]

evalc(var)

or

evalc(disp(var))

The result will be a string that might well have newlines in it. Also note that if you have struct or cell array components, then strings or vectors that are more than a few characters might get summarized like '[1 x 17 double]'

Answer 2

[Fangjun Jiang]

num2str();

mat2str()

[Walter Roberson]

Those require known the datatype.